Single-pump double-output photon-generated terahertz radiation method and generation device thereof

A terahertz radiation and generating device technology, applied in the field of photogenerated terahertz radiation, can solve the problems of single radiation output position, complex equipment structure, low stability, etc., and achieve the effect of compact system structure, precise control of output wavelength, and stable performance.

Inactive Publication Date: 2012-07-11
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The present invention aims to provide a single-pump double-output photo-generated terahertz radiation method and its generating device to solve the problem of single radiation output position, complex equipment structure, high cost and low stability in the existing photo-generated terahertz radiation technology. question

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  • Single-pump double-output photon-generated terahertz radiation method and generation device thereof
  • Single-pump double-output photon-generated terahertz radiation method and generation device thereof
  • Single-pump double-output photon-generated terahertz radiation method and generation device thereof

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Embodiment Construction

[0034] The present invention is based on a THz wave generating system of two parameter down-conversion processes and a THz wavelength detection system of a parameter down-conversion process, such as figure 1 As shown, the pump source 28 of the THz wave generating system simultaneously pumps the THz wave parametric oscillator 29, the THz wave parameter generator 30 and the THz wavelength detection system 31, and the signal light generated by the THz wave parametric oscillator 29 is the THz wave parametric The generator 30 provides the signal light for the difference frequency, and the THz wave parametric oscillator 29 and the THz wave parametric generator 30 simultaneously output the THz wave (idler frequency light) whose wavelength changes synchronously, so as to achieve the purpose of outputting double terahertz waves with a single pump source; At the same time, the THz wavelength at this time is obtained by the THz wavelength detection system 31 and the THz wave parametric os...

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Abstract

The invention provides a single-pump double-output photon-generated terahertz radiation method and a generation device thereof in order to solve the problems of single radiation output position, complex equipment structure, high cost and low stability of the traditional photon-generated terahertz radiation technology. The invention is based on a THz wave generation system for two parametric down conversion processes and a THz wavelength detection system for one parametric down conversion. The generation system comprises a pump source, a pump THz wave parameter oscillator, a THz wave parametergenerator and a THz wavelength detection system, wherein signal light generated by the THz wave parameter oscillator provides difference frequency signal light for the THz wave parameter generator; the THz wave parameter oscillator and the THz wave parameter generator simultaneously output idler light THz waves with synchronous varying wavelength, and thus, the purpose of double THz wave outputs through single pump source is achieved. The THz wave parameter oscillator is subjected to feedback control through the THz wavelength detection system to achieve the purpose of controlling the THz wavelength of double outputs.

Description

technical field [0001] The invention belongs to the technology of photogenerated terahertz radiation, and in particular relates to a single-pump double-output photogenerated terahertz radiation method and a generating device thereof. Background technique [0002] Terahertz (THz) radiation generally refers to electromagnetic waves with a frequency between 0.1 THz and 10 THz, and its wave band is between microwave and far infrared. THz electromagnetic radiation has very unique properties. It can penetrate various organisms, dielectric materials, and gas phase substances. These media have rich absorption and dispersion properties in the THz band. By measuring and analyzing the THz signal of the sample, we can obtain information about the material. The material composition and physical, chemical and biological information in. The terahertz frequency domain has important applications in high data rate communication, secure communication, precision guidance and hidden weapon dete...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S1/00
Inventor 刘红军黄楠孙启兵文进赵卫
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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